Improvement in shields for surface-condensers



PATENT OFFICE...

FRANCIS B. STEVENS, OF NEW YORK, N. Y.

IMPROVEMENT IN SHIELDS FOR SURFACE-OONDENSERS.

Specification forming part of Letters Patent No. 36,808. dated October28, 1862.

To all whom it may concern.-

Beit known that I, FRANCIS B. STEVENS, of the city, county, and State ofNew York, have invented a new Improvement in Surface Condensers orCoolers for Steamers; and I do hereby declare that the followingis afull and exact description thereof, reference being had to theaccompanying drawings, and to theletters of reference marked thereon.

It has often been proposed to place a surfacecondenser for condensingthe steam, or a cooler for cooling the injection-water, outside of asteamer, so that the surfaces to be cooled may be surrounded by thewater in which the steamer floats.

The object. of my invention is to improve this method of placing asurface condenser or cooler, and this I do by placing a guard around thecondenser or cooler, so that they may not be injured by striking againstany object.

I completely inclose the condenser or cooler in this guard,which I makeas strong or nearly as strong as the sides of the steamer to which it isattached, leaving open spaces for the ingress and egress of the water inwhich the steamer iioats to the condenser or cooler.

Figure I represents a longitudinal elevation of my guard. Fig. IIrepresents a horizontal view of the same. Fig. III represents acrosssection of the same, taken through the dotted line x as of Fig. I.

The guard is here shown formed by two strong side pieces, c a, attachedto the sides of the steamer,these side pieces being curved,as shown inFig. II. b bb represent strong bars bent tothe same curve as the sides aa, with the interstices c c c for the ingress and egress of the water tothe condenser or cooler. d

A shows the space occupied by the condenser or cooler. The arrow showsthe direction of the water as it-passes the condenseror cooler.

Fig. IV represents a longitudinal elevation of another application of myguard, with the cover of the same removed. Fig. V is a hori-` zonalsection of the same Itaken through the dotted line .fr x of Fig. IV.Fig. VI is a crosssection of the same taken through the dotted line y yot'- Fig. IV. l p

a a show the side pieces, here shown curved vertically as well ashorizontally to deflect the waves or any object that may strike theguard. b b b show strong bars with the interstices c cc for the ingressand egress of the water. d and e show the space occupied by lthecondenser or cooler. fshows the cover of the guard, attached thereto bybolts, so that it can readily be removed.

If the condenser or cooler is so large that the cover would be apt to besprung or broken by striking any object,I propose to divide thecondenser or cooler into sections, as d and e,

divided by the bar g. Two sections only are

